Uncommon Image Search Engines

• TinEye, submit an image to discover the source of the image, where it is being used and check out its modified or higher resolution versions if they exist on the web.
• GazoPa, a useful search engine to look for images similar in color, shape or other optional parameters, to the one you submitted. Search results are viewable in two layouts.
• RGBStock.com, a good place to search for high quality and royalty-free photos and choose the ones you like to download. Type a keyword to search for the photos or check out what are the most downloaded photos.